| verb | satisfy (thirst) “The cold water quenched his thirst” |
| verb | put out, as of fires, flames, or lights “Too big to be extinguished at once, the forest fires at best could be contained” |
| verb | electronics: suppress (sparking) when the current is cut off in an inductive circuit, or suppress (an oscillation or discharge) in a component or device |
| verb | suppress or crush completely “squelch any sign of dissent” |
| verb | reduce the degree of (luminescence or phosphorescence) in (excited molecules or a material) by adding a suitable substance |
| verb | cool (hot metal) by plunging into cold water or other liquid “quench steel” |
| extinction | noun | the act of extinguishing; causing to stop burning |
| extinguisher | noun | a manually operated device for extinguishing small fires |
| extinguishing | noun | the act of extinguishing; causing to stop burning |
| quenching | noun | the act of extinguishing; causing to stop burning |
| squelch | noun | a crushing remark |
| squelcher | noun | a crushing remark |
| quelling | noun | forceful prevention; putting down by power or authority |